sorry I have never heard of using neurontin for depression????
neurontin is for epilepsy and also used for nerve pain, I've used it for this for a number of years...but my pdoc prescribes other meds for antidepressants...
Was this prescribed by a psychiatrist for you?
many of the epilespy meds are used as mood stabiliers in bipolar but not in unipolar depression .Usually two or three weeks to start to kick in , keep a mood diary to get a more objective than subjective effect .